Summary of Unaudited Quarterly Results of Operations Quarterly Results (Tables)

12 Months Ended

Dec. 31, 2013

Other Income and Expenses [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

21.  Summary of Unaudited Quarterly Results of Operations

2013	March 31,		June 30,		September 30,		December 31,
Revenues	$	12,944,409	$	15,140,583	$	9,764,177	$	9,432,691
Income from continuing operations	6,561,058		3,939,119		2,008,848		2,025,413
Net income from discontinued operations	1,933,019		166,887		1,342,498		—
Net income (loss) - America First Multifamily Investors, L.P.	$	8,321,426	$	3,955,160	$	3,411,259	$	2,027,074
Income from continuing operations, per unit	$	0.15	$	0.08	$	0.05	$	0.04
Income from discontinued operations, per unit	0.04		0.01		0.03		—
Net income, basic and diluted, per unit	$	0.19	$	0.09	$	0.08	$	0.04

2012	March 31,		June 30,		September 30,		December 31,
Revenues	$	5,371,149	$	5,855,843	$	6,312,905	$	7,579,754
Net income (loss) from continuing operations	534,437		176,664		821,702		1,230,959
Net income from discontinued operations	235,148		251,601		1,526,964		218,563
Net income (loss) - America First Multifamily Investors, L.P.	$	630,432	$	306,048	$	2,211,567	$	1,298,797
Income (loss) from continuing operations, per unit	$	0.02	$	—	$	0.03	$	0.04
Income from discontinued operations, per unit	0.01		0.01		0.03		—
Net income (loss), basic and diluted, per unit	$	0.03	$	0.01	$	0.06	$	0.04