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Fair Value Measurements - Reconciliation of activity for assets and liabilities measured at fair value (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Assets - Beginning balance	$ 10,023	$ 1,761
Realized (loss) gain included in earnings	31	186
Unrealized gain included in other comprehensive income	131
Purchases of available -for-sale securities	4,030	(8,076)
Principal redemption	(3,004)
Assets - Ending balance	11,211	10,023
Liabilities - Beginning balance	269	10
Realized gain (loss) included in earnings	(203)	259
Liabilities - Ending balance	66	269
Other equity investments
Assets - Beginning balance	9,794	1,718
Realized (loss) gain included in earnings	(20)
Unrealized gain included in other comprehensive income	131
Purchases of available -for-sale securities	4,030	(8,076)
Principal redemption	(3,004)
Assets - Ending balance	10,931	9,794
Mortgage Banking Derivatives [Member]
Assets - Beginning balance	229	43
Realized (loss) gain included in earnings	51	186
Assets - Ending balance	280	229
Liabilities - Beginning balance	269	10
Realized gain (loss) included in earnings	(203)	259
Liabilities - Ending balance	$ 66	$ 269

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- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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