Net Income (Loss) Per Share - Weighted Average Common Shares (Details) - shares	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Percentage allocated to common shares - weighted average
Common shares outstanding	12,370,039	12,333,550	12,358,609	12,330,994
Unvested participating shares	121,010	112,450	121,243	112,550
Total	12,491,049	12,446,000	12,479,852	12,443,544