BUSINESS COMBINATIONS - Purchase Price (Details) $ / shares in Units, $ in Thousands	1 Months Ended	9 Months Ended
	Jul. 17, 2015 USD ($) $ / shares shares	Sep. 30, 2015 USD ($)
Business Acquisition [Line Items]
Grand preferred B shares exchanged for cash		$ 1,481
The Bank shares Inc [Member]
Business Acquisition [Line Items]
Grand preferred B shares exchanged for cash	$ 1,481,000
Number of Grand common shares outstanding | shares	3,501,185
Per share exchange ratio	0.3114
Number of shares of common stock issued | shares	1,090,269
Multiplied by common stock price per share on July 17, 2015 | $ / shares	$ 15.75
Value of common stock issued	$ 17,171,737
Total purchase price	$ 18,652,737