Stock Based Compensation - Narrative (Details)
|
9 Months Ended |
12 Months Ended |
|
|
Sep. 30, 2016
USD ($)
director
shares
|
Sep. 30, 2015
USD ($)
shares
|
Dec. 31, 2015
USD ($)
shares
|
Apr. 22, 2008
shares
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Maximum number of common stock authorizes for issuance (in shares) | shares |
|
|
|
500,000
|
| Unrecognized compensation expense |
$ 0
|
|
|
|
| Regular monthly board retainer director could receive in cash |
1,667
|
|
|
|
| Regular monthly board retainer if restricted stock vested |
2,083
|
|
|
|
| Monthly meeting fees a director could receive in cash |
725
|
|
|
|
| Monthly meeting fees a director could receive if restricted stock vested |
$ 900
|
|
|
|
| Number of directors elected to receive stock in lieu of cash | director |
13
|
|
|
|
| Director [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Shares issued as payment for deferred compensation (in shares) | shares |
|
|
4,158
|
|
| Market value of shares issued as payment of deferred compensation |
|
|
$ 95,000
|
|
| Restricted Stock [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Maximum vesting period of granted restricted stock |
36 months
|
|
|
|
| Unrecognized compensation expense |
$ 585,000
|
|
$ 340,000
|
|
| Weighted average period for recognition of unrecognized compensation cost |
1 year 6 months 4 days
|
|
|
|
| Share based compensation expense |
$ 342,000
|
$ 249,000
|
|
|
| Number of shares issued (in shares) | shares |
10,588
|
8,630
|
|
|
| Recognized share based compensation expense |
$ 281,000
|
$ 195,000
|
|
|