Earnings Per Share (Details) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Numerator:
Net income applicable to ZAIS Financial Corp. common stockholders	$ 1,659,222	$ 6,229,736
Effect of dilutive securities:
Income allocated to Operating Partnership non-controlling interests	299,094
Dilutive net income available to stockholders	$ 1,958,316	$ 6,229,736
Denominator:
Weighted average number of shares of common stock	5,142,053	3,022,617
Effect of dilutive securities:
Weighted average OP units	926,914
Weighted average dilutive shares	6,068,967	3,022,617
Net income per share applicable to ZAIS Financial Corp. common stockholders - Basic/Diluted	$ 0.32	$ 2.06

Includes adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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