Note 13 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total	$ 12,522	$ 12,674
Accounts Receivable Collateral [Member]
Collateral Discount Rates	55.00%
Inventory Collateral [Member]
Collateral Discount Rates	65.00%
Minimum [Member]
Estimated Sales Cost Applied To Collateral	3.00%
Maximum [Member]
Estimated Sales Cost Applied To Collateral	6.00%
Measurement Input, Expected Term [Member] | Minimum [Member]
Warrants and Rights Outstanding, Measurement Input	1
Measurement Input, Expected Term [Member] | Maximum [Member]
Warrants and Rights Outstanding, Measurement Input	5
Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member]
Warrants and Rights Outstanding, Measurement Input	0.0241
Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member]
Warrants and Rights Outstanding, Measurement Input	0.0255
Measurement Input, Price Volatility [Member] | Minimum [Member]
Warrants and Rights Outstanding, Measurement Input	0.134
Measurement Input, Price Volatility [Member] | Maximum [Member]
Warrants and Rights Outstanding, Measurement Input	0.2058