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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - shares	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Common stock shares issued (in shares)	4,680	4,162	3,662	3,456	4,228	4,138
Restricted stock grants, shares issued (in shares)		16,015				6,744

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Number of shares issued during the period as a result of an employee stock purchase plan.

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