Text Block Comparison: Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block] (us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarningsTextBlock)

Documentation: Tabular disclosure of the amount of gains or losses for the period included in earnings or resulted in a change to net assets, have arisen from the use of significant unobservable inputs (level 3) to measure the fair value of assets, liabilities, and financial instruments classified in shareholders' equity.

(For last 10-K submitted to SEC as of March 31, 2018)